Re: The 4GB memory thing

kanoj@google.engr.sgi.com (Kanoj Sarcar) writes:

quoted

I have a 2.2 patch for 4Gb support, which has seen a lot of stress
testing by now. The 2.3 >2gb support uses a different (and better
approach), but last I checked, things like rawio did not work above

quoted

2Gb. The 64Gb support is completely new ...

2.2.13aa3 includes both 4g bigmem support and rawio and you can do
rawio on all the memory (bigmem included).

	ftp://ftp.*.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.2/2.2.13aa3/

This is the README on how to go in sync with 2.2.13aa3:

	ftp://ftp.*.kernel.org/pub/linux/kernel/people/andrea/tools/apply-patches/README.gz

-- 
Andrea

I don't see a README.gz under 
 http://www.kernel.org/pub/linux/kernel/people/andrea/tools/apply-patches/

In any case, did you a have a small technical README on how rawio works
on bigmem in 2.2.13aa3? Btw, I haven't seen the rawio 2.2 port, I am 
assuming its very similar to 2.3 ... where brw_kiovec() refuses to 
accept PageHighMem pages. I didn't see anything in z-bigmem-2.2.13aa3-7
that tinkers either with fs/buffer.c.

Thanks.

Kanoj
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On Thu, 4 Nov 1999, Kanoj Sarcar wrote:

assuming its very similar to 2.3 ... where brw_kiovec() refuses to 
accept PageHighMem pages. [...]

(btw, i have removed this limitation already in my tree, now that
ll_rw_block() accepts highmem pages as well.)

-- mingo

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